RequestParam批注不适用于POST

Question

I have the following controller:

@RequestMapping(value = { "/member/uploadExternalImage",
            "/member/uploadExternalImage" }, method = RequestMethod.POST)
    public String handleFileUpload(@RequestParam("url") String url,
            Principal principal) throws IOException {
        File file = restTemplate.getForObject("url", File.class);
        file.toString();
        return null;
    }

And I have the following ajax:

      $.ajax({
            url: 'uploadExternalImage',  //Server script to process data
            type: 'POST',
            success: function () {

            },
            complete:function(){
                $.fancybox.hideLoading();
            },

            // Form data
            data: {url: files[0].link},

            cache: false,
            contentType: false,
            processData: false
       });

in spring log I see that

org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'url' is not present

if I change ajax method with GET:

$.ajax({
                url: 'uploadExternalImage?url=123',  //Server script to process data
                type: 'POST',
                success: function () {

                },
                complete:function(){
                    $.fancybox.hideLoading();
                },
                error: function (data) {

                },

                cache: false,
                contentType: false,
                processData: false
           });

it works fine

How does to configure spring correctly?

Answer 1

Http POST is capable of being used for request parameters on request body. But you are trying to use it on a different way.

Try this:

            $.ajax({
                type: 'POST',
                url: "uploadExternalImage?url=BLABLA",
                data: text,
                success: function (data) {
                    //
                }
            });

If you want it on request body then use @RequestBody